Links from within this wiki can be updated, so it's not a valid reason for tagging a page permalink.

Links from outside debian.org aren't a reason for tagging a page permalink: Before removing a page, one should always consider the number the results from google/yahoo's "link:wiki.debian.org/!?FooBar".

Always include the URI of the referring page, as a comment, above the CategoryPermalink tag.

mitigation: Of course, the page can be renamed if the referring page(s) is/are updated.